Butchers prepare sacrificed sheep at a slaughterhouse in Kuwait City on the first day of the al-Adha feast, celebrated by Muslims worldwide, on July 20, 2021. - The al-Adha, or "Feast of Sacrifice", marks the end of the annual pilgrimage or Hajj to the Saudi holy city of Mecca and is celebrated in remembrance of Abraham's readiness to sacrifice his son to God. (Photo by YASSER AL-ZAYYAT / AFP)